[Mlir-commits] [mlir] [MLIR] [NVVM] Update summary and description fields for Barrier Ops in NVVMOps.td (PR #156726)

[Guray Ozen]

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@@ -494,6 +494,26 @@ def NVVM_PMEventOp : NVVM_PTXBuilder_Op<"pmevent">,
 /// mbarrier.init instruction with generic pointer type
 def NVVM_MBarrierInitOp : NVVM_PTXBuilder_Op<"mbarrier.init">,
   Arguments<(ins LLVM_AnyPointer:$addr, I32:$count, PtxPredicate:$predicate)> {
+  let summary = "MBarrier Initialization Op";
+  let description = [{
+    The `nvvm.mbarrier.init` operation initializes an mbarrier object at the specified 
+    memory location. 
+
+    This operation initializes the mbarrier object with the following state:
+    - Current phase: 0
+    - Expected arrival count: `count`
+    - Pending arrival count: `count`  
+    - Transaction count (tx-count): 0
+
+    The operation takes the following operands:
+    - `addr`: A pointer to the memory location of the mbarrier object. Uses generic 
+      addressing, but the address must still be in the shared memory space.
+    - `count`: Integer specifying the number of threads that will participate in barrier
+      synchronization. Must be in the range [1, 2²⁰ - 1].
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grypp wrote:

`2²⁰` might not render. can we double check

https://github.com/llvm/llvm-project/pull/156726